Ok so I got a beautiful mustard gas betta little more than a month ago. He was fine at first, but then I started noticing that his scales were turning white. So I treated him with meds, aquarium salt, and I turned the heat up to 80 degrees f. Now, flash forward a month later, the discoloration has spreads half way through his body;and now he is turning yellow. Whatís going on?? And he is NOT lethargic. I have never seen this kind of disease before! One picture is when it first started happening and the other is today.